EOG8WWV0Z GO:0016491 38/111 oxidoreductase activity molecular_function "Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced." [GOC:go_curators] EOG8WWV0Z GO:0047880 2/111 erythrulose reductase activity molecular_function "Catalysis of the reaction: D-threitol + NADP(+) = D-erythrulose + H(+) + NADPH." [EC:1.1.1.162, RHEA:18008]